Classificatie / Names
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypostominae
Etymology: Guyanancistrus: Composed from Guyana + see under Ancistrus; brownsbergensis: Named after the Brownsberg Nature Park in Brownsberg Mountains, in which it was found, and which is presently under threat from illegal gold mining.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water demersaal; pH range: 7.0 - 7.5. Tropical; 23°C - 23°C (Ref. 116863)
South America: upper Kumbu Creek in the Brownsberg Nature Park, Brownsberg Mountains in Suriname.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 6.4 cm SL mannelijk / geslacht onbekend; (Ref. 116863)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 2; Dorsale zachte stralen (totaal) : 7; Anale zachte stralen: 6.
The type locality in the upper Kumbu Creek at Kumbu Falls (430 m asl) is a small mountain stream with 2.5-3.7 m width, 28-50 cm water depth, with cool (23.1-23.2°C) water, high dissolved oxygen content of 93-96% saturation and 7.08-7.72 mg/L, a pH of 7.0-7.5, conductivity 30.8-31.6 μS/cm, a current strength of 0.29-0.56 m/s taken on 12 July 2014, bottom substrate consisting of sand, gravel, pebbles, boulders and bedrock, and mostly clear water. The creek is sheltered by overhanging vegetation, leaf litter and some woody debris (Ref. 116863).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Fisch-Muller, S., J.H.A. Mol and R. Covain, 2018. An integrative framework to reevaluate the Neotropical catfish genus Guyanancistrus (Siluriformes: Loricariidae) with particular emphasis on the Guyanancistrus brevispinis complex. Plos ONE 13(1):e0189789. (Ref. 116863)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-1)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
Tools
Speciale rapporten
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Internetbronnen
Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00719 - 0.03336), b=2.98 (2.81 - 3.15), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
